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EP 1 529 430 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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28.07.2010 Bulletin 2010/30 |
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Date of filing: 05.11.2004 |
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International Patent Classification (IPC):
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Device at a soil tillage implement
Bodenbearbeitungsgerät
Machine pour le travail du sol
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Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK
TR |
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Designated Extension States: |
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LT LV |
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Priority: |
06.11.2003 SE 0302950
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Date of publication of application: |
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11.05.2005 Bulletin 2005/19 |
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Proprietor: Väderstad-Verken AB |
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590 21 Väderstad (SE) |
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Inventors: |
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- Dahl, Jörgen
599 91, Ödeshög (SE)
- Karlsson, Bo
585 97, Linköping (SE)
- Stark, Magnus
587 27, Linköping (SE)
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Representative: Stein, Jan Anders Lennart et al |
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Albihns.Zacco
Valhallavägen 117
Box 5581 114 85 Stockholm 114 85 Stockholm (SE) |
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References cited: :
EP-A- 0 334 880 US-A- 2 954 087 US-A- 4 821 809
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EP-A- 1 332 655 US-A- 3 219 127 US-A- 5 622 229
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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Summary of the invention
[0001] The aim of the invention is solved by a soil tillage implement according to Claim
1. Hereby is used a device with the same conversion principle as that described in
EP 334 880 with its advantages. By folding aside or folding down one or more soil cultivating
entities the transport height is reduced. This can be achieved in a constructionally
advantageous way since the soil cultivating entities in the transport position are
comprised of essentially horizontal elongated entities.
[0002] Claims 2-6 describe advantageous embodiments one comprising a parallelogram-like
turning aside that can advantageously be used on a straw harrow arranged at the extreme
front in the working position of the implement.
[0003] The further characteristics and advantages of the invention are described in more
detail below with the aid of an embodiment example and drawings relating thereto.
Drawing summary
[0004]
Figure 1 shows a soil tillage implement according to the invention in a working position.
Figure 2 shows the soil tillage implement in a transport position.
Figure 3 shows a straw harrow part of the soil tillage implement the working position.
Figure 4 shows the straw harrow in the transport position.
Detailed description of an embodiment
[0005] Figure 1 shows a soil tillage implement comprising a towing device 2, a central section
4 and two outer sections 6, 8, often referred to as wings or wing sections. The towing
device 2 is adapted to be connected to a not shown vehicle, usually a tractor, and
the direction of work is marked with A in Figure 1.
Summary of the invention
[0006] The aim of the invention is solved by a device according to Claim 1. Hereby is used
a device with the same conversion principle as that described in
EP 334 880 with its advantages. By folding aside or folding down one or more soil cultivating
entities the transport height is reduced. This can be achieved in a constructionally
advantageous way since the soil cultivating entities in the transport position are
comprised of essentially horizontal elongated entities.
[0007] Claims 2-6 describe advantageous embodiments one comprising a parallelogram-like
turning aside that can advantageously be used on a straw harrow arranged at the extreme
front in the working position of the implement.
[0008] The further characteristics and advantages of the invention are described in more
detail below with the aid of an embodiment example and drawings relating thereto.
Drawing summary
[0009]
Figure 1 shows a soil tillage implement according to the invention in a working position.
Figure 2 shows the soil tillage implement in a transport position.
Figure 3 shows a straw harrow part of the soil tillage implement the working position.
Figure 4 shows the straw harrow in the transport position.
Detailed description of an embodiment
[0010] Figure 1 shows a soil tillage implement comprising a towing device 2, a central section
4 and two outer sections 6, 8, often referred to as wings or wing sections. The towing
device 2 is adapted to be connected to a not shown vehicle, usually a tractor, and
the direction of work is marked with A in Figure 1.
[0011] The central section 4 comprises a carrying entity 30 turnably journalled in bearings
at the towing device 2 around an essentially horizontal axle 22 (see Fig. 2). The
outer sections 6, 8 are arranged on either side of the central section 4. The right
outer section 6 is turnably journalled in bearings at the central section 4 around
an axle 24 essentially horizontal in the working position, while the left outer section
8 is similarly journalled in bearings around an axle 26.
[0012] The three sections 4, 6, 8 comprise soil cultivating entities in the form of a fore
straw harrow entity 10, a rear straw harrow entity 12, a fore disc entity 14, a rear
disc entity 16 and a roller package 18. All soil cultivating entities 10, 12, 14,
16 are accordingly comprised here of elongated entities with a plurality of tools
essentially across the direction of work A of the implement. Both the outer sections
6, 8 additionally each comprise a transport wheel entity 20
[0013] Conversion from the working position shown in Figure 1 to the transport position
shown in Figure 2 is begun by first in the known way raising the tools of the soil
cultivating entities 10, 12, 14, 16 out of the soil. Thereafter the straw harrow entities
10, 12 are converted from the working position in Figure 3 to the transport position
in Figure 4.
[0014] Figure 3 shows the fore and rear straw harrow entities 10, 12 of the left outer section.
These each comprise an essentially elongated cross horizontal beam 50, 54 at which
a plurality of harrow tines 52, 56 are affixed. The rear beam 54 is fastened to the
rest of the outer section with the fastening member 58.
[0015] Both the straw harrow entities 10, 12 are moveably journalled in bearings at each
other with a number, here four, of turning members 60, 61. Both the central turning
members 60 comprise a link arm 66 one end of which is fastened around a turnable axle
68 at a fastening console 62 fixed at the beam 54 of the rear straw harrow entity
12. The other end of the link arm 66 is fastened at a turnable axle 70 at a fastening
console 64 fixed at the beam 50 of the fore straw harrow entity 10. Relative movement
between the straw harrow entities is prevented through a locking member 72 in the
form of a pin that runs through the fastening console 62 and the link arm 66 and thereby
locks the link arm 66. Figure 3 also shows that both outer turning members 61 differ
somewhat from the inner through a simpler fastening console at the rear beam 54 and
the absence of a locking member.
[0016] Conversion from working position to the transport position in Figure 4 is achieved
by releasing the locking pins 72 and thereafter turning the link arms 66 essentially
90 degrees anti-clockwise according to Figure 3 until the straw harrow entities 10,
12 achieve their relative placing according to Figure 4. Thereafter the locking pins
72 are replaced, now in position in front of the fore beam 50 which prevents any great
relative movement between the beams 50, 54.
[0017] The soil tillage implement is then converted to the transport position shown in Figure
2 in a way essentially described in full in
EP 334 880. In brief, the transformation is achieved by extending the hydraulic cylinders 28
and thereby turning the carrying entity 30 of the central section 4 essentially through
90 degrees. Hereby, the outer sections 6, 8 are also turned up 90 degrees so that
they rest on the transport wheel entities 20. From this intermediate position the
tractor is then driven forward, wherein the transport wheels 20 guide the outer sections
6, 8 into the transport position in Figure 2. The outer sections 6, 8 are accordingly
turned around axles 24, 26 which in the transport position are essentially vertical.
[0018] Through the parallelogram-like displacement of the fore straw harrow entity 10, it
is shown in Figure 2 that a lower transport height is achieved. The turning axles
68, 70 shown in Figures 3 and 4 are essentially horizontal in the transport position
shown in Figure 2.
[0019] The invention can be varied in a plurality of ways within the frame of the patent
claims. For example, the soil cultivating entities can be replaced by others or have
another internal order. It is not necessarily just a straw harrow that is turned aside.
It is also conceivable to allow several entities to be moveable between working position
and transport position. The movement can also be achieved in other ways, for example
with the help of hydraulic cylinders. Furthermore, the movement does not necessarily
need to be parallelogram-like, the entity can also be turned inwards and downwards
in the transport position. The turning movement can also be replaced by a displacement
movement, for example telescopic. The embodiment described in detail is preferred
since it provides a functionally secure and cost effective solution.
[0020] According to another alternative solution the central section can be turned in other
directions. In such a solution, the rear soil cultivating entity becomes the highest
in the transport position and the one that has to be turned aside.
1. A soil tillage implement comprising a towing device (2), a central section (4) turnably
journalled in bearings at the towing device (2) around an essentially horizontal axle
(22), which central section (4) is arranged to be turned essentially 90 degrees between
a working position and a transport position, at least one outer section (6, 8) turnably
journalled in bearings at the central section (4) around an axle essentially horizontal
in working position (24, 26), which axle (24, 26) in the transport position is essentially
vertical, which outer section (6, 8) comprises a plurality of soil cultivating entities
(10, 12, 14, 16), characterised in that at least one of said soil cultivating entities (10) is movable between a working
position and a transport position, in which the at least one (10) of said soil cultivating
entities (10 12 14 16) is displaced towards an adjacent (12) one of said soil cultivating
entities, and journalled in bearings at the outer section (6, 8).
2. An implement according to Claim 1, wherein said soil cultivating entity (10) is turnably
journalled in bearings at the outer section (6, 8), with at least two turning members
(60, 61) comprising a first turning joint (68) essentially horizontal in transport
position on the outer section (6, 8), a second turning joint (70) essentially horizontal
in transport position on the soil cultivating entity (10), and a link arm (66) connected
to the turning joints.
3. An implement according to Claim 2, wherein a locking member (72) is adapted to lock
at least one of said turning members (60) in the working position.
4. An implement according to any one of the previous claims, wherein said spoil cultivating
entity (10) is in the working position arranged at the extreme front of the outer
section (6, 8).
5. An implement according to any one of the previous claims, wherein two outer sections
(6, 8) are journalled in bearings at the central section (4), one on each side of
the central section (4).
6. An implement according to any one of the previous claims, wherein said soil cultivating
entity (10) is comprised of a straw harrow entity comprising a beam (50) essentially
horizontal across in the working position with a plurality of thereto affixed harrow
tines (52).
1. Bodenbearbeitungsgerät umfassend eine Schleppeinrichtung (2), einen Zentralbereich
(4), der drehbar in Lagern der Schleppeinrichtung (2) um eine im Wesentlichen horizontale
Achse (22) gestützt ist, wobei der Zentralbereich (4) so angeordnet ist, dass er im
Wesentlichen um 90 Grad zwischen einer Arbeitsposition und einer Transportposition
gedreht wird, zumindest einen äußeren Bereich (6, 8) der in Lagern des Zentralbereichs
(4) drehbar um eine Achse (24, 26) gestützt ist, die in der Arbeitsposition im Wesentlichen
horizontal ist, wobei die Achse (24, 26) in der Transportposition im Wesentlichen
vertikal ist, wobei der äußere Bereich (6, 8) eine Vielzahl von Bodenbestelleinheiten
(10, 12, 14, 16) aufweist
dadurch gekennzeichnet, dass
zumindest Eine der Bodenbestelleinheiten (10) zwischen einer Arbeitsposition und einer
Transportposition bewegbar ist, wobei die zumindest Eine (10) der Bodenbestelleinheiten
(10, 12, 14, 16) gegen eine Benachbarte (12) der Bodenbestelleinheiten versetzt ist,
und in Lagern an dem äußeren Bereich (6, 8) gestützt ist.
2. Gerät nach Anspruch 1, bei dem die Bodenbestelleinheit (10) drehbar in Lagern an dem
äußeren Bereich (6, 8) gestützt ist, mit zumindest zwei Drehelementen (60, 61) umfassend
ein erstes Drehgelenk (68) im Wesentlichen horizontal in der Transportposition an
dem äußeren Bereich (6, 8), ein zweites Drehgelenk (70) im Wesentlichen horizontal
in der Transportposition an der Bodenbestelleinheit (10), und einen Verbindungsarm
(66), der mit den zwei Drehgelenken verbunden ist.
3. Gerät nach Anspruch 1, bei dem ein Sperrelement so eingerichtet ist, dass es zumindest
eines der Drehelemente (60) in der Arbeitsposition sperrt.
4. Gerät nach einem der vorhergehenden Ansprüche, bei dem die Bodenbestelleinheit (10)
in der Arbeitsposition an der äußersten Front des äußeren Bereichs (6, 8) angeordnet
ist.
5. Gerät nach einem der vorhergehenden Ansprüche, bei dem zwei äußere Bereiche (6, 8)
in Lagern an dem Zentralbereich gestützt sind, eines an jeder Seite des Zentralbereichs
(4).
6. Gerät nach einem der vorhergehenden Ansprüche, bei dem die Bodenbestelleinheit (10)
eine Stroheggeeinheit umfasst, umfassend einen Ausleger (50), der im Wesentlichen
horizontal quer in der Arbeitsposition ist, mit einer Vielzahl von an diesem befestigten
Eggzacken (52).
1. Instrument de travail du sol comprenant un dispositif de remorquage (2), une section
centrale (4) tourillonnée de manière rotative dans des paliers au niveau du dispositif
de remorquage (2) autour d'un essieu (22) essentiellement horizontal, laquelle section
centrale (4) est agencée pour être pivotée essentiellement à 90 degrés entre une position
de travail et une position de transport, au moins une section externe (6, 8) tourillonnée
de manière rotative dans des paliers au niveau de la section centrale (4) autour d'un
essieu essentiellement horizontal en position de travail (24, 26), lequel essieu (24,
26) dans la position de travail est essentiellement vertical, laquelle section externe
(6, 8) comprend une pluralité d'entités de culture de sol (10, 12, 14, 16), caractérisé en ce qu'au moins l'une desdites entités de culture de sol (10) est mobile entre une position
de travail et une position de transport, dans laquelle au moins l'une (10) desdites
entités de culture de sol (10, 12, 14, 16) est déplacée vers une entité (12) adjacente
desdites entités de culture de sol, et tourillonnée dans des paliers au niveau de
la section externe (6, 8).
2. Instrument selon la revendication 1, dans lequel ladite entité de culture de sol (10)
est tourillonnée de manière rotative dans des paliers au niveau de la section externe
(6, 8), avec au moins deux éléments rotatifs (60, 61) comprenant un premier joint
rotatif (68) essentiellement horizontal en position de transport sur la section externe
(6, 8), un second joint rotatif (70) essentiellement horizontal en position de transport
sur l'entité de culture de sol (10), et un bras de liaison (66) raccordé aux joints
rotatifs.
3. Instrument selon la revendication 2, dans lequel un élément de blocage (72) est adapté
pour bloquer au moins l'un desdits éléments rotatifs (60) dans la position de travail.
4. Instrument selon l'une quelconque des revendications précédentes, dans lequel ladite
entité de culture de sol (10) est, dans la position de travail, agencée au niveau
de la partie avant extrême de la section externe (6, 8).
5. Instrument selon l'une quelconque des revendications précédentes, dans lequel deux
sections externes (6, 8) sont tourillonnées dans des paliers au niveau de la section
centrale (4), l'une de chaque côté de la section centrale (4).
6. Instrument selon l'une quelconque des revendications précédentes, dans lequel ladite
entité de culture de sol (10) est composée d'une entité de herse pour la paille comprenant
une poutre (50) essentiellement horizontale dans la position de travail avec une pluralité
de dents de herse (52) fixées à celle-ci.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description